(1)田间作业经常使用“中立”位置。在播种、中耕时,由于将操作手柄经常放在“中立”位置,分配器通往油缸上下腔的油孔封闭,油既不能流入油缸,也不能从油缸中流出,使农具悬挂机构和油缸活塞构成一体。在地表不平时,主油缸活塞上下移动,迫使胶管内油压急剧增高而造成爆裂。因此,田间作业时应将手柄放在“浮动”位置。 (2)运输过程中受冲击。农具提升到运输位置后,操作手柄跳到“中立”位 (1) Fieldwork often uses “neutral” locations. During sowing and cultivating, because the operating handle is often placed in a “neutral” position, the oil hole of the distributor leading to the upper and lower chambers of the cylinder is closed, the oil can neither flow into the cylinder nor flow out from the cylinder, so that the agricultural implement suspension mechanism and the cylinder piston Form one. In the uneven ground, the main cylinder piston moves up and down, forcing the hose inside the hydraulic pressure caused by a sharp burst. Therefore, the field operation should be on the handle “floating” position. (2) during the impact of transport. After the implement is raised to the transport position, the operation handle jumps to the “neutral” position